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Myocardial positron emission tomography (PET) using N-13-ammonia (NH3) and F-18-fluorodeoxyglucose (FDG) was performed in 16 patients with myocardial infarction to assess myocardial blood flow and glucose utilization. These PET data were also compared by left ventriculography. N-13-ammonia PET study
To evaluate myocardial blood flow and glucose utilization, N-13 ammonia (NH3) and F-18 deoxyglucose positron emission tomography scanning was performed in 22 patients with previous anterior wall myocardial infarction, using a high-resolution, multi-slice, whole-body scanner. The N-13 ammonia study
To evaluate the relationship between the reversible defect of 123I-15-(p-iodophenyl)-9-(R,S)-methylpentadecanoic acid (9MPA) and residual viability within an infarct-related area, we performed resting single photon emission computed tomography (SPECT) with 9MPA and positron emission tomography (PET)
OBJECTIVE
To investigate the relations between myocardial metabolism and the kinetics of thallium-201 in myocardial scintigraphy.
METHODS
46 patients within six weeks after the onset of acute myocardial infarction underwent resting myocardial dual isotope, single acquisition, single photon emission
Hypoperfused myocardium with increased uptake of 18F-fluorodeoxyglucose (FDG) is considered to be ischemic but viable myocardium. However, the significance of a more severe defect of FDG than of 13N ammonia (NH3) (i.e., reverse flow-metabolism mismatch) is not well understood.
METHODS
To study a
OBJECTIVE
We evaluated the clinical significance of reciprocal ST-segment depression associated with exercise-induced ST-segment elevation for detecting residual viability within the infarcted area.
BACKGROUND
Although the relation between residual viability and exercise-induced ST-segment elevation
OBJECTIVE
We evaluated the relation between increased fluorine-18 deoxyglucose (FDG) uptake in remote normoperfused areas and acute ischemic events in patients with ischemic heart disease.
METHODS
We performed nitrogen 13 ammonia (NH3) and FDG positron emission tomography (PET) on 67 patients (46
Few studies have investigated the contractility of myocardium with a reverse flow-metabolism pattern; that is, greater uptake of nitrogen- 13-ammonia (NH3) than fluorine- 18-fluorodeoxyglucose (FDG) on positron emission tomography (PET). This study examined the contraction thickening represented by